package com.wechet.utils;

import java.util.Random;

/**
 * Created by sc on 2017/9/21.
 */
public class keyUtils {
    public static synchronized  String genUniqueKey(){
        Random random = new Random();

        Integer a = random.nextInt(900000)+100000;
        return  System.currentTimeMillis()+String.valueOf(a);
    }
}
